# What is CVE-2022-20677?

> CVE-2022-20677 is a medium-severity flaw (CVSS 6.7) in IOS from Cisco, published on 15 April 2022. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 0.6%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2022-20677

## At a glance

- **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle.
- **Precursor Intelligence risk score:** 25 out of 100 (Low); action: Monitor. Kept up to date as the evidence changes.
- **Severity:** Medium (CVSS 6.7 out of 10)
- **Known to be exploited:** No, not on the list of flaws known to be exploited today
- **Chance of use in the next 30 days:** 0.6% (latest exploit-likelihood forecast)
- **Published:** 15 April 2022
- **Record last updated:** 7 November 2023
- **Main product:** IOS from Cisco
- **Affected products:** 62

## What is CVE-2022-20677? In plain terms

An attacker has to be already on the device with an administrator account, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline.

### The official description

Multiple vulnerabilities in the Cisco IOx application hosting environment on multiple Cisco platforms could allow an attacker to inject arbitrary commands into the underlying host operating system, execute arbitrary code on the underlying host operating system, install applications without being authenticated, or conduct a cross-site scripting (XSS) attack against a user of the affected software. For more information about these vulnerabilities, see the Details section of this advisory.

### What kind of flaw is it?

- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CWE-326: Inadequate Encryption Strength

### How an attack on it works

- Where an attacker can be: Already on the device
- How hard it is to pull off: Easy: no special conditions
- Login needed first: An administrator account
- Does someone have to click: No, nobody has to do anything
- What an attacker gets: Can read data, change data and take it offline

Severity vector: `CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`

## Is CVE-2022-20677 being exploited? Not that we know of

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.6%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 0.6%, 0.6%, 0.6%, 0.6%, 0.6%, 0.6%, 0.6%.

### Timeline

- 15 April 2022: Published
- 7 November 2023: Record last updated

### How Precursor Intelligence ranks it

CVE-2022-20677 scores **25 out of 100 (Low)**, with the action "Monitor".

Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less:

- Evidence it is being exploited: biggest factor
- How severe it is: strong factor
- How widely exposed it is: smaller factor
- Threat activity around it: smaller factor

85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it.

## Who is affected by CVE-2022-20677?

The published record lists 62 products.

- [IOS](https://www.precursorintelligence.com/product/cisco/ios) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): 17.6.1
- [1100-4g Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1100-4g_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [1100-6g Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1100-6g_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [1101 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1101_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [1109 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1109_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [1111x Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1111x_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [111x Integrated Services Router](https://www.precursorintelligence.com/product/cisco/111x_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [1120 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1120_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [1131 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1131_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [1160 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/1160_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [4221 Integrated Services Router](https://www.precursorintelligence.com/product/cisco/4221_integrated_services_router) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [8101-32fh](https://www.precursorintelligence.com/product/cisco/8101-32fh) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [8101-32h](https://www.precursorintelligence.com/product/cisco/8101-32h) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [8102-64h](https://www.precursorintelligence.com/product/cisco/8102-64h) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [8201](https://www.precursorintelligence.com/product/cisco/8201) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [8201-32fh](https://www.precursorintelligence.com/product/cisco/8201-32fh) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [8202](https://www.precursorintelligence.com/product/cisco/8202) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [8800](https://www.precursorintelligence.com/product/cisco/8800) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 1001-X](https://www.precursorintelligence.com/product/cisco/asr_1001-x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 1002-Hx](https://www.precursorintelligence.com/product/cisco/asr_1002-hx) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 1006-X](https://www.precursorintelligence.com/product/cisco/asr_1006-x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 1009-X](https://www.precursorintelligence.com/product/cisco/asr_1009-x) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 900](https://www.precursorintelligence.com/product/cisco/asr_900) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 9000v-V2](https://www.precursorintelligence.com/product/cisco/asr_9000v-v2) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 9001](https://www.precursorintelligence.com/product/cisco/asr_9001) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 9006](https://www.precursorintelligence.com/product/cisco/asr_9006) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 9010](https://www.precursorintelligence.com/product/cisco/asr_9010) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 9901](https://www.precursorintelligence.com/product/cisco/asr_9901) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 9902](https://www.precursorintelligence.com/product/cisco/asr_9902) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 9903](https://www.precursorintelligence.com/product/cisco/asr_9903) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 9904](https://www.precursorintelligence.com/product/cisco/asr_9904) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 9906](https://www.precursorintelligence.com/product/cisco/asr_9906) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 9910](https://www.precursorintelligence.com/product/cisco/asr_9910) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 9912](https://www.precursorintelligence.com/product/cisco/asr_9912) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [ASR 9922](https://www.precursorintelligence.com/product/cisco/asr_9922) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 3650](https://www.precursorintelligence.com/product/cisco/catalyst_3650) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 3850](https://www.precursorintelligence.com/product/cisco/catalyst_3850) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 8200](https://www.precursorintelligence.com/product/cisco/catalyst_8200) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 8300](https://www.precursorintelligence.com/product/cisco/catalyst_8300) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 8500](https://www.precursorintelligence.com/product/cisco/catalyst_8500) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 8500l](https://www.precursorintelligence.com/product/cisco/catalyst_8500l) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 9200](https://www.precursorintelligence.com/product/cisco/catalyst_9200) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 9300](https://www.precursorintelligence.com/product/cisco/catalyst_9300) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 9400](https://www.precursorintelligence.com/product/cisco/catalyst_9400) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 9500](https://www.precursorintelligence.com/product/cisco/catalyst_9500) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 9500h](https://www.precursorintelligence.com/product/cisco/catalyst_9500h) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 9600](https://www.precursorintelligence.com/product/cisco/catalyst_9600) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 9800](https://www.precursorintelligence.com/product/cisco/catalyst_9800) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 9800-40](https://www.precursorintelligence.com/product/cisco/catalyst_9800-40) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 9800-80](https://www.precursorintelligence.com/product/cisco/catalyst_9800-80) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 9800-Cl](https://www.precursorintelligence.com/product/cisco/catalyst_9800-cl) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst 9800-L](https://www.precursorintelligence.com/product/cisco/catalyst_9800-l) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst Cg418-E](https://www.precursorintelligence.com/product/cisco/catalyst_cg418-e) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst Cg522-E](https://www.precursorintelligence.com/product/cisco/catalyst_cg522-e) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst Ess9300](https://www.precursorintelligence.com/product/cisco/catalyst_ess9300) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst Ie3200](https://www.precursorintelligence.com/product/cisco/catalyst_ie3200) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst Ie3300](https://www.precursorintelligence.com/product/cisco/catalyst_ie3300) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst Ie3400](https://www.precursorintelligence.com/product/cisco/catalyst_ie3400) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Catalyst Ie9300](https://www.precursorintelligence.com/product/cisco/catalyst_ie9300) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Cloud Services Router 1000v](https://www.precursorintelligence.com/product/cisco/cloud_services_router_1000v) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Esr3300](https://www.precursorintelligence.com/product/cisco/esr3300) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified
- [Esr6300](https://www.precursorintelligence.com/product/cisco/esr6300) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified

## How do I fix CVE-2022-20677?

1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list.
2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisory first in the list.
3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in.
4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood.

### References

- [tools.cisco.com](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iox-yuXQ6hFj) (Vendor advisory)

## Questions

### What is CVE-2022-20677?

CVE-2022-20677 is a medium-severity flaw in IOS from Cisco, published on 15 April 2022. An attacker has to be already on the device with an administrator account, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline.

### How serious is CVE-2022-20677?

It scores 6.7 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2022-20677 is 25 out of 100, which is Low. Its action is "Monitor". No sign of exploitation and a low forecast. Patch it in your normal update cycle.

### Is CVE-2022-20677 being exploited?

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.6%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2022-20677 affect?

For IOS from Cisco: 17.6.1. The record lists 62 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2022-20677?

Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2022-20677 affect you?

Precursor Intelligence keeps checking for you:

- **Tell us what you run.** Pick your software from a list, or let us work it out from your website.
- **We match it to every flaw.** Over 400,000 published flaws, checked against your list.
- **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it.
- **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools.

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